Mold conveyer



ug 9, 1932 J. J. HARTLEY 1,871,054

MOLD CONVEYER Filed ,April 29, 1929 3 Sheets-Sheet 1 i.07..cf7.. ./0/0 cy/0.

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MOLD CONVEYER Filed AApril 29. 1929 3 Sheets-Sheet 2 Aug. 9, 1932. J. J. HARTLEY 37154 MOLD CONVEYER Filed April 29, 1929 3 Sheets-Sheet 3 Patented Aug. 9, 1932 UNITED erstes lreussi rarest errrcf JOHN J. HARTLEY, or CHICAGO, rLLINors, lAssrerivon"ro LINK-BELT Coiur'iuvr,l or

GHTCAGO', ILLINTS, A CORPORATIONOF ILLINOIS l MOLD convertita j .Application inea April 29,

This invention relates to a conveyerand particularly to the mechanism adapted for conveying molds, although it is notvlimited tothis use. One object of the invention is to provide a conveyer of this type which may be used for the-conveying of molds inl a casting plant and when so used it is adjustable so that its size and shape may be adjusted and so that adjustment may be made to take up for wear and`to accommodate for other` conditions. Another object is toprovide a device of this sort in which the difficulty of`accumulations of dust7 sand and other dirt upon the supporting parts is reduced to a minimum. Other objects will appear from time to time in the course of the specification and claims.

The invention is illustrated more or less diagrammatically in the accompanying drawings wherein:

Figure l is a partial plan view with parts removed;A Y i f Figure 2 is a partial plan view with parts removed; Figures l and 2 taken together show a complete plan view'of atypical installation. 1

Figure is a side elevation of the left hand end,-tliat is to say7 lookingfrom the left toward the device indicated in Figure l;

Figure 4 is a partial plan view taken on an enlarged scale and showing parts broken away; .Y

Figure 5 is y tion ona further enlarged scale taken on line 5-5 of Figure 4; u V

.Figure 6 is a vertical longitudinal cross section on an enlarged scale taken on line 6 6 of Figure 4;

Figure 7 is a view generally similar to Figure 5 indicating a modified form;

Figure 8 is a generally similar view indicating a further modification. l

Figure 9 is a diagrammatic elevationofa slight modilication. y

Like parts are indicated by like symbols throughout the specication and drawings.

A is a foundation which may be a specially prepared foundation or floor of a factory'or shop Vwhere the machine is installed. A1 are supporting-members resting upon the foun-v a transverse vertical cross sec-y y 1929. seria No. 358,837.

dation and extendingV preferably upwardly. y y

BracingV members A2 may be used. The par ticular design of the support is unimportant.

Any sort of supporting structure which may carry the installation may be used. EXtending llaterally across the upright supporting roller carrying member A5 is used. The purpose of this is obviously to provide for an i additional set of rollers at the turns. A6 is a chain guard rail supported bythe'members A3 and adapted to inclose and to prevent interference with the driving chain.

y The members A4 and A5 are notched at ap` propriate intervals and in these notches are positioned the supporting'shafts B of rollers B1. VAt the turns instead ofthe rollers B1, short rollers B2 are used. Their construction is normally thefsame as the rollersv Bl and their bearing and supporting means are nor` mally the same.l

The carrying members of the conveyer will now bedescribed. Thesecomprise a chassis assembly7 chain attachment and a carrying cover plate. The chassisassembly includes two-,endlcross members C, C. An intermedie ate cross member. C? which -is provided with adownwardly bent portion C2 is-perforated to receivea chain connection. There is also a cross member C3 which has a downwardly bent portion' Ctwithin'which there is a slot C5. Fastened by welding `or other suitable Vmeans to the four cross members above def scribed are .two or more rails C?, C". These rails are preferably curved, as shown in detail in Figure 4; and they7 with the cross members, form a chassis structure. Lying upon this chassis jstructure'- and preferably bolted to it -is'a carrying or cover plate C7, which may havel downwardly depending edges C8 and'is provided atlone end with a' reduced and slightly depressed portion C9. Bolts C1", 'G10 servetofasten the coverplate removably on the chassis. Y

D, D are chain links. They are fastened at one point by means of a pin D1 to each of ,the cross members C1` at its downwardly bent the depressed portion C4 of the cross members 3 Intermediate the point of attachment on the cross members C1 and C3 they are oined by pins D3. f f f v The parts above described are arranged to form a continuous conveyer with endless chains and this arrangementis shown in'Figis shown a generally rectangular arrange` be altered and the conveyer mightv be given any suitable outline by the addition or reduction of the number of sprockets. In the arrangement shown four sprockets'are used, one being a driving sprocket and the other three idling. The large sprocket E is carried on a iXed mounting E1. VThe sprocket E2 is provided with a driving mechanism indicated generally at E2. This may be of any suitable type. It is suiiicient that they furnish power under proper controlfor driving the chain. The chain as a whole is indicated by Xin Figures l and 2. It mesheswith the sprockets. n At the end of the conveyer opposite to the sprockets E and E2 are two adjustably mounted sprockets E4, E4. Each of them is carried on a shaft E5, E5 which is itself mounted in an' adjustably supporting base E6, E6.l This base is such that the bearing of the sprocket may be moved backward and forward, that is to say,.in or out, so as to increase or decrease the tension and to provide any adjustment which is necessary.

As shown in Figure 7 a modified form of the'structure appears. In this form the supporting arrangement, the roller mounting and the chain construction are generally similar to that described above. A different plate and chassis structure is used, however. In this form ofy the invention a plate Fis provided with a downwardly depending edge F1 on one side and a somewhat longer edge F2 onthe other. This edger'F2 is provided with attaching points or bearings F3 in which' the pins D1 may be positioned. l

Insteadv of the rails C6 as shown inthe earlier figures, rails G, G are used, and these rails are fastend preferably by Welding directly to the bottom of theplate F. Any suitable typelof rail may be used and for this f construction a built up intermediate surface' structure is unnecessary and the plate itself serves the function of the` cross members shown in the earlier figures.l

- In Figure 8 a further modification is shown. Inthe form here shown Aaplate H as at H2, H2 to provide portions`or bearing parts which bear against the' rollers whichv Y Y are-asffollows: ment, it will be understood that this might` are the same as shown in the preceding forms. Y Y

It will be obvious that while I have shown .and described an operative device, many changes may be made in the size, shape, relation, distribution and proportionY of parts without departing materially from the spirit of this invention, and it is desired, therefore, that` this description andY showing be conn 1 sideredas in a large measure diagrammatic." ures l and 2. While 1n these figures there Theuse and operation of this invention The parts are assembled as shown and it will be noticed thatone end of each plate over-laps the end of an adjacent plate. Thus there is' a complete surface, and except at thevtime when the parts areturning about ars'procket there is no blank lsurface in the conveyer. The sprockets E4, E4 are given proper adjustmentv to provide for proper tension and the conveyer is yput in motion. rlhe molds are put on yat any'suitablev point and maybe dumped at any suitable point.Y A'shake out hopper assembly I may bev pro.-` vided and at this point the molds may be lre moved for sha-king to separate the sand from them andv they may be carried by conveyers or by any other suitable means. It will be understood that this conveyer is not limited in its use to the conveying of molds, but is particularly Vapplicable to that use. y

The conveyerV chain used is suchthat it cannot only bend laterally, but can bend to some degree vertically andthus the general arrangement shown can be used in connection with a conveyer which hasl a somewhat limited upward or downward path. Y Such an arrangement is indicated diagrammatically in Figure 9. Y

.The bent or irregular shape of the rails C6 causes the wear of the rails on the-rollers which support them and which they contact,

to be distributed rmore widely across the surface of the rollers than would be the case if therails were straight. sufficient degree of bending or curvature maybe given to the rails so that there wear is distributed across approximately the entire face of the rollers.

I claim: Y

1; In combination in a conveying assembly, a plurality of conveyer platform members, a` chain adapted to drive them, means for driving the chain, atta-ching means whereby the chain is attachedto each of said platform members at a pluralityof points, the connec- Y tion atsome of said points being upon a fixed pivotal connection andV the connection at other of said points providing a limited movable pivotal connection.

2. In combination in a conveying assembly, a Vplurality of rollers, a'chain, means forA driving said chain,a plurality of platformv members, each havinga plurality of track members Vadapted to contact and rest upon 'los said rollers, said track members being permanently so bent as to avoid uneven wear upon the rollers, and means for joining said platform members to said chain.

3. In combination in a conveying assem- -V bly, a plurality of rollers, a chain, means for driving said chain, a plurality of platform members, each having on its under surface a plurality of track members adapted to contact and rest upon said rollers, said track members being permanently so bent as to avoid uneven wear upon the rollers, and means for joining said platform membersto said chain.

4. In combination in a conveying assembly, a plurality of rollers, a chain, means for driving said chain, a plurality of platform members, each having on its under surface a plurality of track members adapted to contact and rest upon said rollers, said track members being permanently so bent as to avoid uneven wear upon the rollers, and means for joining said platform members to said chain, said members shaped so that the ends of adjacent members overlap with each other.

5. In combination in a conveying assembly, a plurality of rollers, fixed supports therefor, a link chain extending generally along the line of said rollers, means for driving said chain, a plurality of platform members, each having on its under surface a plurality of track members adapted to contact and rest upon said rollers, said track members being permanently so bent as to avoid uneven wear upon the rollers, means for joining said platform members to said chain, said members shaped so that the ends of adjacent members overlap with each other, the whole conveyer .arranged to provide an endless conveyer assembly.

6. In combination in an articulated conveying assembly, a plurality of downwardly facing track members, said members being permanently so bent as to avoid uneven wear upon the rollers.

7 In combination in an articulated conveying assembly, a plurality of platform members, each having on its under surface a plurality of downwardly facing track members, said members being permanently so bent as to avoid uneven wear upon the rollers.

Signed at Chicago, countyof Cook and State of Illinois, this 20th day of April` JOHN J. HARTLEY.. 

